SOLUTION: solve for y: 9y^4 - 4y^2 = 0
-> -> SOLUTION: solve for y: 9y^4 - 4y^2 = 0
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solve for y:
9y^4 - 4y^2 = 0
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Start with the given equation.
Now set each factor equal to zero:
Now solve for y for each equation:
So the solutions are
(with a multiplicity of 2),